Patent Law FAQ
This FAQ answers all your questions about patent law, patent procedure, and the patent examination process.
A Sequence Identifier (SEQ ID NO) is a unique number assigned to each disclosed nucleic acid and/or amino acid sequence in a patent application. According to MPEP 2422.01:
“37 CFR 1.821(d) and 37 CFR 1.823(a)(5) require that each disclosed nucleic acid and/or amino acid sequence in the application appear separately in the “Sequence Listing”, with each sequence further being assigned a sequence identifier, referred to as “SEQ ID NO:” or the like.“
Key points about Sequence Identifiers:
- They must begin with 1 and increase sequentially by integers.
- Each sequence must have a different number for identification.
- Sequences should be presented in numerical order in the “Sequence Listing” where practical.
- When discussing a sequence in the description or claims, a reference to its SEQ ID NO is required at all occurrences.
- SEQ ID NOs can be used to discuss or claim parts of a sequence (e.g., “residues 14 to 243 of SEQ ID NO:23”).
The use of SEQ ID NOs provides a shorthand way for applicants to discuss and claim their inventions without restricting how an invention can be claimed.
To learn more:
Topics:
MPEP 2400 – Biotechnology,
MPEP 2422.01 – Nucleotide And/Or Amino Acids Disclosures Requiring A "Sequence Listing",
Patent Law,
Patent Procedure